The New York Times reports AT&T reset the passcodes of 7.6 million customers after it found data was "released on the dark web." The company also found that 65.4 million former account holders' data was affected in the incident and that Social Security numbers were included in some of the datasets. "AT&T has launched a robust investigation supported by internal and external cybersecurity experts. Based on our preliminary analysis, the data set appears to be from 2019 or earlier," AT&T stated.